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Dane Sabo 2025-03-27 15:28:02 -04:00
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300s School/ME 2046 - Digital Control Theory/Project/Project_Proposal.md
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@ -62,6 +62,16 @@ bits (3-4 bits per batch). This controller will estimate the state of the system
at this partial-sample, and combined with the current ADC readout, perform control.
For a plant, I plan to use the case of a read head on a hard disk drive. Hard
disk drives require extreme precision to operate properly
*explain how SAR updates registers continuously for some devices. perhaps we can use first couple bits with a state estimator to make a guess what the final value will be and do control. then as we get mroe info, and with our model of the system, we can correct for how wrong we were*
disk drives require extreme precision to operate properly, and as such would
benefit from an extremely high speed control system. In my problem, I will model
this system as controlling the radial position of the read head, while modeling
the inertia of the read head apparatus and motor dynamics. In addition to these
effects, I will introduce a high frequency disturbance that represents turbulent
fluid interacting with the drive head, pushing it off of its ideal position.
The block diagram of this system is expressed in figure~\ref{fig}.
If this project is successful, the higher inter-sample controller will have a
lower average error between the real head position and desired head position
when compared to the controller using only full ADC sampling.